KAYAK vs Mollie

KAYAK and Mollie (Building a payments and banking stack for makers.) both appear on the Smoower Developer Ecosystem Index.

Mollie (rank #122) holds a modest lead over KAYAK (rank #485) on the overall Smoower ecosystem score (54 vs 38). The gap of 16 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Mollie is ahead of KAYAK. On education (docs, guides and learning material for developers), Mollie is clearly ahead of KAYAK. On community (issue response, PR reviews and discussion health), Mollie is ahead of KAYAK. On reach (how visible the ecosystem is beyond its own repos), KAYAK is clearly ahead of Mollie. On momentum (release cadence and how fast the ecosystem moves), Mollie is slightly ahead of KAYAK.

KAYAK carries 3,186 GitHub stars across 72 public repos, with 4 repositories active in the last 90 days and 1 external contributors on record. Mollie shows 2,571 stars across 85 public repos, 30 active in the last 90 days and 26 external contributors.

KAYAK is the stronger read for anyone weighting reach. Mollie looks better where education is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.